Hemmer for sewing-machines



2 sheets-'sheen 1..

(No Model.)

G. A.BRADY.= HEMMEB POR 'SEWING MACHINES.

Patented Dec. 12. 1882.

' (No Moden) 2 sheets-sheet 2.

G.l A. BRADY.

EEMMBB. POR SEWING MACHINES.

No.268,'179. Patented Dec. 12, 1882.

PATENT OFFICE.

GILBERT A. BRADY, OF CHICAGO, ILLINOIS.

Hi-:MMER FOR SEWING-MACHINES.

SPECIFICATION forming peri; of Letters To all 'whom it may concern:

Be it known that I, GILBERT A. BRADY, a citizenof the United States of America, residing at Chicago, in the county of Cook and State ot'lllinois, haveiuvented certain new and useful Improvements in Adjustable Hemmers for Sewing-Machines, of which the following, in connection with the accompanying drawings, is a specification.

In the drawings, Figure 1 is aperspective ot' a hemmer embodying my invention. Fig.2 is a bottom View thereof. Fig. 3 is a side view thereof, and Figs. 4, 5, and 6 are plan views of the blanks from which the sheet-metal parts are made, respectively.

Like letters ot' reference indicate like parts.

In the drawings, A represents the presserfoot bar, and B the `needle-bar, of a sewingmachine.

G is a presser-foot to which my attachment is applied. i I) is the top plate. The blank from which this piece is made is shown in detail in Fig. 4. This blank consists of a piece of flexible sheet metal, of which a portion, a, constitutes the top. plate proper. One corner ot' the part a is extended, as shown at a', and continuous 4with the part a is a wing, ct", also, on one edge ofthe part a is a lip or wing, ft', and the part a also has an extension, am. Between the parts a and a are the notches b and b. c ando are slots in the parts a and a, respectively.4 d d are needle-holes. To prepare this blank for use in the attachment I bend it between the lines e e and lay the part a horizontally underneath the part a. I also roll the lip or extension ammto form a scroll, E, and the opposite edge ofthe part a,I bend along the lines e e to form a tongue or ange, F.

G isaslidingor adjustable plate, arranged between the upper and lower parts of the plate D-that is, between the parts a and a. The blank from which theplate Gis made is shown in Fig.5,and consists of aplate of liexible sheet metal in the form of a parallel'ogram. I In this blank I make a hole, j', to receive a screw-pin, which will be hereinafter referred to. To form this blank for use I bend it between the lines gg, which extend diagonally across theplate, as shown. This curve or bend is wide or open,

Patent No. 268,779, dated December 12, 1882. Application tiled April 8, 1882. (o model.)

I so that a considerable space will exist between the two horizontal parts of the pla-te, between whichs the scroll a!" when the parts are all arranged together for use, as shown in Figs. l and 2. t

H is a base-piece or supporting-tongue. This 4tally from the curled-up edge of the plate H.

The arm H is permanently fastened to the uuder side of the plate G, after the latter is arranged between the parts a and a of the plate D, the said arm being laid for that purpose in the slot o', which is long enough to permit the adjustable plates to be moved back and forth between the parts ot and a", as will hereinatter more fully appear.

I is a screw-pin projecting vertically from the `plate Gand extending through the slot c.

J isa nut run upon the upper end of the pin I, and K is a washer arranged between the nut J and the plate D.

By bending the'plate D in the manner described and shown a sufficient space is left between the parts a and a thereof' to receive the plate Gand allow itto be moved back and forth therein when the nut J is loosened; but hy tightening this nut this movement will be prevented. As the plate H is permanently attached to the plate G, these two plates move together, and as the scroll a" is xed the curled-up part of the plate H may be set at a greater or less distance from the scroll al", according to the width which may be desired for the hem. The turned-in end ofthe plate G is always in the same position with relation `to the upcurled end or part ot' the plate H, and a slight space exists between this plate and the down andin turned part ot the plate G. `When the part cdof the plate Dis bent underneath the parta the extensions aand a/mare. brought together or directly opposite each other. The holes d d then register with each other, and that part ofthe slot c which is not occupied by the arm H' registers with the slot c. I then fasten the extensions a and aff together without closing the space between the parts a. and a", and then fasten the extensions to the presser-foot C so that the needle-hole therein will register with' the holes d d. The hemmer is then ready for use.

To apply the heinmer to the machine, I place thepresser-foot C on the presser-foot bar, and tighten the clamping-screw for securing it thereon. The goods are slipped in between the plate H and the inbent portion of the plate G. As the edge of the goods strike the upturned part ofthe plate H they will be turned or folded over toward the scroll am', and will reach that scroll, and it will turn in the edge ofthe goods. The goods will thus be laid to form a hem, and the hein will be folded at both edges-that is, there will be a fold to form the hein, andthe edge ot' the part laid over to form the hem will be turned in underneath the part so laid over. As the machine is operated the goods will be fed along and stitched so as to secure the hem. The hemmer, as will be perceived, may be adjusted to make either a very broad or a very narrow hem.

The hetniner, not regarding the presser-foot C and the adjusting-screw, is made in only three parts or pieces, all of' which may be made and arranged together with facility.

Any suitable means may be employed for connecting the plates G and H adjustably to the plate D.

Having thus described my invention, what I claim as new, and desire to secure by Letters Patent, is-

1. An adjustable hemmer for sewing-machines, in which'are combined the Xed plate D, consistingof the top part or portion, a., and under part, a, having thereon the extensions a and am', and in which are needle-holes, and the slots c and c', respectively, the parta having thereon the scroll E and lip F, the plate G, bent hack underneath the scroll E and secured adjustably between the parts a and a, and the base-plate H, having a curled-up rear edge and a tongue, H, the latter being rigidly attached to the plate G, all operating together substan tially as and for the purposes specified.

2'. An adjustable hemmerin which are combined the fixed slotted plate D, consisting ot' the top part or portion, c, and the under part or portion, a, having thereon the scroll E, all made in one blank or piece, the plate G, bent underneath the scroll E, the plate H, having -an uptnrned edge and secured to the plate G,

the presser-foot C, and a clamp or fastening for securing the plates G and H adjust-ably to the plate D, substantially as and for the purposes specified.

. GlLBERT A. BRADY. Witnesses J. H. LIGHTBODY, H. M. SAFFORD. 

